The invention discloses a production process of vat olive R. The production process of the vat olive R is characterized by comprising the following specific steps: S1, dehydrogenation condensation; S, acylation loop closing; S3, oxidization and filtering; and S4, grinding, spraying drying, sample making, mixing, quality inspection, preparation of a finished product and warehouse entry. According to the production process, sodium chlorate replaces manganese dioxide to carry out production, so that the production process is greatly simplified; therefore, the production process is more simplified and more convenient to operate; and the production process of the vat olive R is higher in practicability.